Helsinki and Tallinn by Gulf of Finland and Riga by Gulf of Riga

Visible in the upper part of this wide-swath ASAR image is the Gulf of Finland, the easternmost arm of the Baltic Sea. Visible on opposite sides of the gulf are Helsinki, Finland (northern shores, near the top edge) and Tallinn, Estonia (southern shores, parallel to Helsinki).

Visible to the south of Tallinn is the Gulf of Riga, a bay of the Baltic Sea between Latvia and Estonia. The area of the Gulf of Riga is about 18,000 km². The maximum depth is 67 m. The island of Saaremaa (Estonia) partially separates it from the rest of the Baltic Sea. The city of Riga can be viewed near the gulf’s southern shores.